Nut-lock



(No Model.)

B. G. RIDER.

NUT LOCK.

patented Feb. 1, 1898.

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UNITED STATES PATENT ROBERT Gr. RIDER, OF MOUNT AYE, IO'WA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 598,114, dated February 1, 1898.

Application filed April 2 2, 18 9 7.

To all whom it may concern.- 1 31 Be it known that 1, ROBERT G. RIDER, a citizen of the United States, residing at Mount Ayr, in the county of Ringgold and State of Iowa, have invented a new and useful Nut- Lock,of which the following is a specification.

My object is to provide a simple, strong, and durable nut-lock adapted for use in railwayrail joints, bridges, and all kinds of manufactures and machinery where it is important to retain detachable nuts securely on the ends of bolts as long as may be desired.

My invention consists in the construction, arrangement, and combination of parts, as

and illustrated in the accompanying drawings, in which-- Figure 1 is a bottom view of a nut adapted to be engaged and locked When in proper osition on a bolt by means of an adjustable key. Fig. 2 is a face view of i a fish-plate or splice-bar for a railway-rail joint provided with grooves adapted to retain an adjustable key in proper position relative to a nut on a bolt. Fig. 3 is a perspective view of a key adapted to be placed in a groove in the surface of any object against which the bottom face of a nut is to rest when in practical use. Fig. i is a perspective view of a washer in an inverted position and provided with a slot and opening adapted to receive the key and to aid in looking a nut. Fig. 5 shows my lock applied to a railway-rail joint. Fig. 6 is a sectional view through the line a: a; of Fig. 5, showing the key in position as required to lock the nut. Fig. 7 is aview corresponding with Fig. 6, but shows the nut unlocked and the relative positions of the key and fish-plate having a groove and the nut having recesses in its under face to receive the inner end of the key as required to lock the nut. Fig. Sis a modification of Fig. l and shows a ratchetfaced annular groove on the under side of a nut adapted to engage the inner end of a key that is tapering and fitted in form and shape to engagethe ratchet-face as required to lock the nut.

The letter A designates a nut of hexagon form provided with a series of elongated grooves b in its under surface adapted to receive the inner end of a key. These grooves Serial No. 633,417. (No model.)

are in a circular line and some distance from the outer edge of the nut.

C is a key made of a single piece of wire that may vary in size to suit nuts of different sizes. It is elbow-shaped and has an extension d at its inner end projecting at right angles to the plane of the niain-elbow-shaped portion and is adapted to enter a groove b in the bottom of the nut when that elbow-shaped portion is rotated a quarter of a revolution as required to turn the outer and exposed end of the key into the groove or cavity provided therefor to protect it from contact with extraneous objects and to maintain the key securely in a stationary position and in engagement with the nut.

H represents the fish-plate or splice-bar of a railway-rail joint provided with elbowshaped grooves 76 in its outsidesurface adapted to admit an elbow-shaped key 0, as shown in Figs. 6 and 7 and as required to lock and unlock the nut.

L represents awasher that has an elbowshaped slot or in its under surface adapted to receive an elbow-shaped key 0, and it also has a projection 77., adapted to enter a corresponding opening in the surface of the object upon which the washer is placed preparatory to locking a nut on top of it. The projection prevent-s the washer from turning with the nut.

v In practical operation of my invention the key 0 is placed in the elbow-shaped groove of the surface next to the nut, as shown in Fig. 7, and when the nut is drawn tight on the bolt the outer end of the key is depressed into the groove and the inner end by such move ment elevated into one of the recesses 12 in the under face of the nut, as shown in Fig. 6. No portion of the key will then project outside of the outer surface of the nut or the washer to be engaged by anything that might change the position of the key or impair the lock. Areverse motion of the adjustable key unlocks the nut.

I claim as my invention- 1. In a nut-lock, an elbow-shaped key havingan extension at its inner end projecting at right angles to the plane of the main elbowshaped portion, in combination with a nut having recesses in its under surface to admit the-inner end of said key and its outer end adapted to lie fiat in an elbowshaped recess key, and a Washer, or its equivalent, having Io putside of the circumference of the nut in the an elbow-shaped groove to admit the elbowsurface engaged by the inner face of the nut shaped key that projects beyond the circumas and for the purposes stated. ference of the nut, arranged and combined to A 5 2. A nut-lock comprising an elbow-shaped operate in the manner set forth.

key having an extension at its inner end pro- ROBERT. G. RIDER. jecting at right angles to the plane of the main Witnesses:

elbow-shaped portion, a nut having recesses J. M. FULLER, on its underside to admit the innerend of the THOMAS G. OBWIG. 

